He's definitely NOT upset. Far from it - he's exercising and practicing being a bunny with all the basic bunny maneuvers. Bunnies are something like the 3rd fastest mammal I think.
He's having fun. Sammy used to do Bunny 500s in all my apartments. Only now that I don't have wall to wall carpeting here does she not venture out to do them any more. I worry about her lack of exercise.
It's even better if you catch it on your movie camera and share with others.